- almost complete language reproduced

R=r
OCL=15801
CL=15801

R=r
OCL=15786
CL=15792

R=r
OCL=15777
CL=15791

2.14u 19.82s 22.17r 	 6.out 100000	# old
1.87u 0.43s 2.31r 	 6.out 100000	# new

R=r
OCL=15762
CL=15772

R=r
OCL=15771
CL=15771

R=r
DELTA=18  (11 added, 1 deleted, 6 changed)
OCL=15752
CL=15755

R=rsc
OCL=15751
CL=15751

running rob's powser p.go:

3.21u 2.58s 5.80r 	 6.out	# old
1.48u 0.05s 1.54r 	 6.out	# new

R=r
OCL=15748
CL=15750

tested on mac only.
output like this:
	tubenose=% sudo go/src/cmd/prof/6prof -p 71839 -c  -d 10
	63.93%	mach_semaphore_signal
	 4.64%	sys·chansend1
	 3.93%	chanrecv
	 2.86%	semrelease
	 1.43%	cas
	 1.43%	sendchan
	 1.07%	xadd
	 0.71%	main·f
	 0.71%	scheduler
	 0.71%	sys·gosched
	 0.71%	dequeue
	 ...

R=rsc
DELTA=361  (361 added, 0 deleted, 0 changed)
OCL=15731
CL=15736

- more AST nodes built and printed

R=r
OCL=15735
CL=15735

- parts of AST built and printed
- no formatting yet

R=r
OCL=15727
CL=15727

	- follow through segmented stacks
	- a couple of fixes to db

R=rsc
DELTA=72  (62 added, 0 deleted, 10 changed)
OCL=15713
CL=15717

R=r
OCL=15704
CL=15704

R=r
OCL=15699
CL=15699

R=r
OCL=15693
CL=15695

to string convert.  if the byte array has length 0,
the computation of &a[0] throws an index bounds error.

for fixed size arrays, this ends up invoking arrays2d
unnecessarily, but it works.

R=ken
DELTA=304  (44 added, 28 deleted, 232 changed)
OCL=15674
CL=15678

R=r
OCL=15675
CL=15675

R=rsc
DELTA=51  (50 added, 0 deleted, 1 changed)
OCL=15665
CL=15667

R=r
OCL=15666
CL=15666

R=r
OCL=15664
CL=15664

R=r
DELTA=348  (338 added, 0 deleted, 10 changed)
OCL=15648
CL=15660

R=r
DELTA=79  (79 added, 0 deleted, 0 changed)
OCL=15656
CL=15656

R=r
DELTA=9  (4 added, 3 deleted, 2 changed)
OCL=15655
CL=15655

R=r
DELTA=9  (7 added, 2 deleted, 0 changed)
OCL=15628
CL=15643

	- do not print tracebacks if $GOTRACEBACK=0
	- set GOTRACEBACK=0 during tests
	- filter out pc numbers in errors

R=r
DELTA=70  (22 added, 30 deleted, 18 changed)
OCL=15618
CL=15642

R=r
DELTA=2  (0 added, 0 deleted, 2 changed)
OCL=15626
CL=15641

	export.c:
		- only expose explicitly exported types to importer
		- fix behind your back
	go.h:
		- add deep() prototype (fixes 64-bit linux crash on time.go)
	go.y:
		- add a new syntax error case
	walk.c:
		- allow a,b = f() where f is func ptr (fixes bug088)

R=ken
OCL=15617
CL=15630

R=r
OCL=15627
CL=15627

R=r
DELTA=3  (0 added, 0 deleted, 3 changed)
OCL=15619
CL=15624

if y.tab.c is older than y.tab.h, make
interprets doing nothing as a failure,
because y.tab.c hasn't been updated.
so update it.

R=r
DELTA=4  (0 added, 0 deleted, 4 changed)
OCL=15615
CL=15622

R=r
OCL=15599
CL=15599

R=ken
OCL=15598
CL=15598

things to break. hopefully all fixed
now.

R=r
OCL=15597
CL=15597

R=r
OCL=15587
CL=15587

R=r
OCL=15586
CL=15586

- fixed result parsing of function types

R=r
OCL=15585
CL=15585

- clarified constants and constant expressions
- clarified type of array composite literals (fixed vs open arrays)
- clarified type of map composite literals (need to use '&' to get
  a map pointer)
- added proposal for "if-else" (TBD)
- added TODO w/ respect to "x, ok = <-ch" (and for arrays)

R=r
DELTA=51  (35 added, 0 deleted, 16 changed)
OCL=15573
CL=15575

R=r
DELTA=20  (6 added, 7 deleted, 7 changed)
OCL=15569
CL=15571

permits testing that the compiler emits error messages for
specific lines that match egrep regexps.  The desired error
messages are expressed using comments of the form
	// ERROR "regexp"

R=r
DELTA=90  (73 added, 8 deleted, 9 changed)
OCL=15513
CL=15566

also print argv(0) in default message

R=gri
DELTA=37  (21 added, 9 deleted, 7 changed)
OCL=15540
CL=15554